final teslaRangeApp.spec.js

final teslaRangeApp.spec.js

import appReducer from './teslaRangeApp';

const initialState =  {
  carstats:[
    {miles:246, model:"60"},
    {miles:250, model:"60D"},
    {miles:297, model:"75"},
    {miles:306, model:"75D"},
    {miles:336, model:"90D"},
    {miles:376, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 20,
    climate: true,
    wheels: 19
  }
}

const climateChangeState = {
  carstats:[
    {miles:267, model:"60"},
    {miles:273, model:"60D"},
    {miles:323, model:"75"},
    {miles:334, model:"75D"},
    {miles:366, model:"90D"},
    {miles:409, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 20,
    climate: false,
    wheels: 19
  }
}

const speedUpState = {
  carstats:[
    {miles:242, model:"60"},
    {miles:248, model:"60D"},
    {miles:292, model:"75"},
    {miles:303, model:"75D"},
    {miles:332, model:"90D"},
    {miles:371, model:"P100D"}
  ],
  config: {
    speed: 60,
    temperature: 20,
    climate: false,
    wheels: 19
  }
}

const speedDownState = {
  carstats:[
    {miles:267, model:"60"},
    {miles:273, model:"60D"},
    {miles:323, model:"75"},
    {miles:334, model:"75D"},
    {miles:366, model:"90D"},
    {miles:409, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 20,
    climate: false,
    wheels: 19
  }
}

const wheelChangeState = {
  carstats:[
    {miles:261, model:"60"},
    {miles:268, model:"60D"},
    {miles:316, model:"75"},
    {miles:327, model:"75D"},
    {miles:359, model:"90D"},
    {miles:389, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 20,
    climate: false,
    wheels: 21
  }
}

const temperatureUpState = {
  carstats:[
    {miles:264, model:"60"},
    {miles:272, model:"60D"},
    {miles:319, model:"75"},
    {miles:333, model:"75D"},
    {miles:367, model:"90D"},
    {miles:398, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 30,
    climate: false,
    wheels: 21
  }
}

const temperatureDownState = {
  carstats:[
    {miles:261, model:"60"},
    {miles:268, model:"60D"},
    {miles:316, model:"75"},
    {miles:327, model:"75D"},
    {miles:359, model:"90D"},
    {miles:389, model:"P100D"}
  ],
  config: {
    speed: 55,
    temperature: 20,
    climate: false,
    wheels: 21
  }
}

describe('test reducer', () => {
  it('should handle initial stat', () => {
    expect(
      appReducer(undefined, {})
    ).toEqual(initialState)
  })

  it('should handle CHANGE_CLIMATE', () => {
    expect(
      appReducer(initialState,{
        type: 'CHANGE_CLIMATE'
      })
    ).toEqual(climateChangeState)
  })

  it('should handle SPEED_UP', () => {
    expect(
      appReducer(climateChangeState,{
        type: 'SPEED_UP',
        value: 55,
        step: 5,
        maxValue: 70
      })
    ).toEqual(speedUpState)
  })
  it('should handle SPEED_DOWN', () => {
    expect(
      appReducer(speedUpState,{
        type: 'SPEED_DOWN',
        value: 60,
        step: 5,
        minValue: 45
      })
    ).toEqual(speedDownState)
  })
  
  it('should handle CHANGE_WHEEL', () => {
    expect(
      appReducer(speedDownState,{
        type: 'CHANGE_WHEEL',
        value: 21
      })
    ).toEqual(wheelChangeState)
  })

  it('should handle TEMPERATURE_UP', () => {
    expect(
      appReducer(wheelChangeState,{
        type: 'TEMPERATURE_UP',
        value: 20,
        step: 10,
        maxValue: 40
      })
    ).toEqual(temperatureUpState)
  })
  it('should handle TEMPERATURE_DOWN', () => {
    expect(
      appReducer(temperatureUpState,{
        type: 'TEMPERATURE_DOWN',
        value: 30,
        step: 10,
        minValue: -10
      })
    ).toEqual(temperatureDownState)
  })
})